 Zero Trust Architecture:

Zero Trust is a security concept centered on the belief that organizations should not automatically trust anything inside or outside their perimeters and must verify everything attempting to connect to their systems.

 Basic Tenets of Zero Trust:

The primary principle is "never trust, always verify." This means every access request is authenticated, authorized, and encrypted regardless of where it originates.

Zero Trust requires securing all communication, whether it occurs within the internal network or comes from external sources. This approach prevents lateral movement by potential attackers who have breached the network perimeter.

 Key Components:

Authentication and Authorization:Continuous verification of user identities and access privileges.

Microsegmentation:Dividing the network into small, isolated segments to limit the spread of threats.

Encryption:Ensuring that all data, whether at rest or in transit, is encrypted to protect its confidentiality and integrity.

 Other Options:

Incoming Traffic Inspection:While important, this is just one aspect of Zero Trust.

Security Frameworks and Libraries:These are tools and guidelines to implement security but do not define the core tenets of Zero Trust.

Digital Identities:Implementing digital identities is part of the broader Zero Trust strategy but not a standalone tenet.

 References:

The CISSP Study Guide explains the Zero Trust architecture and its emphasis on securing all communications regardless of network location (Sybex CISSP Study Guide, Chapter 8: Principles of Security Models, Design, and Capabilities)​​.